There are some preparation methods to manufacture AR magnesium oxide. Today, let us talk about the vapor phase method, which is one of the preparation methods.
Firstly, the high purity magnesium metal can react with oxygen to form the crystal nucleus. And then, the particle continue to grow, and it is obtained high purity magnesium oxide. The raw material, which has more than 80% of magnesium oxide content, was dissolved at the rate of 1:2, and then, it made the magnesium salt of inorganic acid. When refine it, it was pressed and heated. After washing, dehydration and desiccation, the temperature was heated to 1100℃ last for an hour. Finally, It obtains the high purity magnesium oxide.